code: def test_estimatecontrast():
      assert spm.EstimateContrast._jobtype == "stats"
      assert spm.EstimateContrast._jobname == "con"
  
file_path: nipype/nipype/interfaces/spm/tests/test_model.py
imports: import os
  import nipype.interfaces.spm.model
  import nipype.interfaces.matlab
label_desc: Use image node_id 3 for calling a global function with example usage: test_estimatecontrast() without return types